Bit-holding tool



I G. A. MONTGOMERY.

BIT HOLDING TOOL.

APPLICATION man Aumz. 1920.

Hill rs r E F 15- I GUS-TAVUS A. monreonnamor DALLAS, 'TEXASMASSIGNOR or ZONE-HALF To E eonsnnson conromrion, OEDALLAS, Texas, A. conroaariongor D LAWARE;

To aZl whom it may concern Be it known that I, GUSTAVUS A. Mo r- GOMERY, a citizen of the Republic "of Finland. residing at Dallas, in the county of Dallas and State of Texas, have invented oer-- of the bit over an ordinary blacksmiths an vil. Y It is generally, necessary to "shift "the tongs and the latter do not always hold the bit in a satisfactory, manner. The-purpose of my invention is toprovide a tool on which the wellbit maybe securely fastened and whereby itmay be held in aconvenient and satisfactory manner for dressing or other-Q wise treating the well bit. A particular feature is to-provide a tool with means for receiving the shank of the bit and holding the bit securely and against movement independent of the tool. Another feature of the in vention is to provide means for fastening a pair of bits on the tool in substantially the same position and relation they would 00- cupy when being used in the well, thus permitting the cutting diameter to be gauged and other adjustments made without inserting the bit in the reamer body or cutter head,

which would require considerable time and labor.

In carrying out the invention I provide an elongated handle memberwith a head or enlarged portion at one end. On one of the fiat sides of this head or portion I provide a. socket or'counter-sunk seat which is shaped to snugly receive the shank of the well bit so that when said shank is in said socket, the

bit cannot move laterally of the head. A fastening device is arranged to pass through the pivot hole of the shank o f-the bit and also through the bottom of the socket and includes means for effecting a quick and efficient fastening operation. vBy duplicating the socket on the other side of the head and employing an elongated fastening device, two bits may be fastened to the tool in the same position they would occupy in an underreamer body or other tool. With the bits thus fastened their cutting edges may be gauged and their diameter determined the Applicationfiled August 2, 1925. Serial No. 400,696. f

shank A of an underreamer bit B.

Specification of Letters latentr 1922. I

same as if they had benfinserted in the underreamer body which would require a con: siderable length of time. Itfwill be seen that with a bit orbitsfast-enedon a tool of this nature there is no danger of thiefworkmanfdropping the bit from the tool and he may laythe same down and pick it up again zvitioout the bit being disengaged from the satisfactorily and jeasily carried out.

The'bit willbe securely held and a dressing-or reshaping operation can be more The invention will be more readilyunderstood from a reading 'of the fol1owing specifications'and by reference to the'accompanylng' drawings, in which an example ofthe invention is shown, and-wherein}.

Fig.1 is a side elevation of a tool constructed in accordance with 'my invention and, showing an underreamerf bit fastened on sa1d to0l,/

, r g, 2 is elevation at' right a a e F1g. -1, a portion of; the head being illustrated insection,

Figi'3 is'a cross-sectional detail oil the line 33 of Fig. 1,

Fig. 4 is an elevation of a modified form for holding two bits, a portion being illustrated in section, and l Fig. 5 is a cross-sectional detail on the line 5-5 of 4, the bits being. omitted.

In the drawings the numeral 10 designates an elongated handle member which maybe of any desired length and of any shape, and is preferably made of metal. At one end the handlemember has a flat head or enlarged portion 11. The width of this portion as well as-the length willpdepend upon the size of the bit which is to be handled. In one side or face of the head a counter-sunk socket 12 is provided. I have shown this socketwith one continuous inclined wall 13 at one side and an angular wall 14 at the other side, these walls being shaped to snugly receive the edges of the The bit illustrated has a shoulder C and the end of the head is abutted by this shoulder. It will be seen that the shank A, fitssnugly in the socket. The shank A of the bit has a transverse (not shown) of the reamer, and onwhich the bit is carried; A hole15 is made 7 through the head in the bottom of the socket 12 so as to register with thejopening'D when the shank A is inserted in the socket. A bolt 16 is passed through the hole 15 and the opening D' and receives a nut 17 which is providedwith a handle 18 having an upturned end or tip 19. The nut engages the outer side of the shank A and forces said shank into the socket. A handle 18 affords an-ainple leverage whereby the nut may be quickly rotated and the parts tightly drawn together. The upturned end 19 provides means whereby the handle may be more efiiciently held or may be given a light blow either to tighten or loosen the nut as will be obvious. With the shank of the bit securely fastened in. the tool it will be seen that the workman may freely handle the bit and will not have to pay any attention to his hold on the same likehe would with a pair of tongs. He may give his entire time and attention to the dressing of the cutting edge and may lay the bit down and pick it up again without disconnecting the parts. Nhen the bit is inserted in the fire for heating it is not detached from the tool and, therefore, may be readily withdrawn and'cannot be lost.

In Figs. tand 5 I have shown a slightly modified form in which a second socket 12 is formed on the opposite side of the, head 11, for receiving the shank A of a bit B. A. bolt 16f ispassed through the hole D of the shankA, the hole 15 of the head and the hole D of the shank A. A nut 17f is mounted onthe bolt andis provided with a handle 18 and an upturned end 19. By manipulating these parts the shanks of the bits are tightly drawn into the sockets and the bits held in the same relation in which they would be held in a reamer body, thus permitting the workman to gauge the radius and diameter and otherwise test out the same as willbe obvious. stood that the tool may be made with one socket or with both sockets, and where made with two sockets, oneof these maybe usedfor dressing a single bit if desired.

What I claim, is:

A device for holding and manipulating a plurality of well bits in dressing the same, comprising a substantially straight elon gated handle provided at its forward end with a substantially flat head extending forwardly of the handle, said head being provided upon its opposite faces with sockets, each socket having its outer side and forward end open, said head having a transverse opening extending through the sockets, said sockets being adapted to receive the shanks of a pair of drill bits, whereby the bits are held assembled in the position they It is to be under occu when in use said shanks havin transverse. openings, and a bolt passing through the transverse openings of the 5 shanks and the head, and a nut carried by the bolt and provided with a radial handle,

whereby the nut may be readily turned.

In testimony whereof I afiix my signature. 7

' GUSTAVUS A. MONTGOMERY. 

